The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 17, 2021

Filed:

May. 14, 2020
Applicant:

Optos Plc, Dunfermline, GB;

Inventors:

Peter Robert Wakeford, Dunfermline, GB;

Enrico Pellegrini, Dunfermline, GB;

Assignee:

OPTOS PLC, Dunfermline, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); G06T 7/73 (2017.01);
U.S. Cl.
CPC ...
G06K 9/0061 (2013.01); G06K 9/00604 (2013.01); G06K 9/00617 (2013.01); G06T 7/73 (2017.01); G06T 2207/20081 (2013.01); G06T 2207/30041 (2013.01);
Abstract

An ocular imaging system comprising: an image acquisition module which acquires a retinal image; a landmark location prediction module which predicts locations of at least two landmarks in the retinal image; and an apparatus for alerting a user to an unreliability in at least one of the predicted locations. The apparatus receives the predicted first locations; uses the predicted locations to evaluate a distance metric indicative of a distance between the landmark features; use data indicative of a probability distribution of a distance between the landmark features obtained from measurements of the distance in retinal images different from the retinal image to determine an indication of whether the evaluated distance metric lies outside a predetermined interval about a peak the probability distribution; and generates an alert indicating the unreliability when the determined indication indicates that the evaluated distance metric lies outside the predetermined interval.


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